1msgsize(9F)              Kernel Functions for Drivers              msgsize(9F)
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NAME

6       msgsize - Return the total number of bytes in a message
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SYNOPSIS

9       #include <sys/stream.h>
10       #include <sys/strsun.h>
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14       size_t msgsize(mblk_t *mp);
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INTERFACE LEVEL

18       Solaris DDI specific (Solaris DDI)
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PARAMETERS

21       mp    Message to be evaluated.
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DESCRIPTION

25       The msgsize() function counts the number of bytes in a message, regard‐
26       less of the data type of the underlying data blocks.
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RETURN VALUES

29       Number of bytes in the message.
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CONTEXT

32       This function can be called from user, kernel or interrupt context.
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SEE ALSO

35       msgdsize(9F)
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38       STREAMS Programming Guide
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42SunOS 5.11                        9 June 2004                      msgsize(9F)